Concept:Longitude measures the angular distance of a point east or west of the Greenwich Meridian.
Explanation:The Earth is divided by imaginary lines called meridians.
The Greenwich Meridian is the reference line at
0∘ longitude.
A point's longitude is the angle at the Earth's center between its meridian and the Greenwich Meridian.
This angle is measured in degrees, from
0∘ to
180∘ east or west.
Latitude, however, measures distance north or south of the Equator.
Therefore, the correct term is longitude.
Answer:D. longitude